use c++ instead of c++0x to compatible with old compiler

examples/pressure.js

@@ -0,0 +1,30 @@
+// Generated by ToffeeScript 1.1.4-4
+(function() {
+  var assert, curl, i, j, next, once, _i;
+
+  curl = require('../index');
+
+  assert = require('assert');
+
+  j = 0;
+
+  (next = function() {
+    console.info("curl instances: ", curl.get_count());
+    return setTimeout(next, 1000);
+  })();
+
+  for (i = _i = 1; _i <= 100; i = ++_i) {
+    (once = function() {
+      var _this = this;
+      return curl('localhost/test.html', function(_$$_err, _$$_res) {
+        var err, res;
+        err = _$$_err;
+        res = _$$_res;
+        assert.equal(res.body.length, 1468);
+        if (++j % 100 === 0) console.info(j);
+        if (j < 20000) return once();
+      });
+    })();
+  }
+
+}).call(this);